نتایج جستجو برای: partial least

تعداد نتایج: 597294  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1388

این تحقیق با استفاده آنالیز چند متغیره بر روی عکس های ذخیره شده بوسیله یک دوربین دیجیتال راه حلی را برای مسئله همپوشانی پیک ها که یکی از مسائل مهم در کروماتوگرافی لایه نازک است ارائه میدهد. ما برای اولین بار اندازه گیری همزمان چند گونه بر روی کاغذ کروماتوگرافی لایه نازک را با استفاده از آنالیز چند متغیره عکس مورد مطالعه قرار دادیم. سیستم عکسبرداری متشکل از یک کابینت، یک دوربین دیجیتال و یک بر...

Journal: :Methods in molecular biology 2013
Hervé Abdi Lynne J Williams

Partial least square (PLS) methods (also sometimes called projection to latent structures) relate the information present in two data tables that collect measurements on the same set of observations. PLS methods proceed by deriving latent variables which are (optimal) linear combinations of the variables of a data table. When the goal is to find the shared information between two tables, the ap...

Journal: :health scope 0
rezvan zendehdel department of occupational hygiene, school of public health, shahid beheshti university of medical sciences, tehran, ir iran; department of occupational hygiene, school of public health, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98–2122431995, fax: +98-2144124910

results the results revealed that metal urine concentration in welders was higher than controls but only the difference in chromium concentration was significant (p < 0.002). in the range of metals exposure, induction of oxidative stress for exposed group was observed by increase in urine mda (11.17 ± 4.23 and 4.83 ± 1.82 mm in welders and controls, respectively; p < 0.01). information of the m...

Journal: :iranian journal of pharmaceutical sciences 0
kinjal r patel shri bm shah college of pharmaceutical education and research, college campus, modasa, 383315, gujarat, india. laxman m prajapati shri bm shah college of pharmaceutical education and research, college campus, modasa, 383315, gujarat, india. amit k joshi shri bm shah college of pharmaceutical education and research, college campus, modasa, 383315, gujarat, india. mahammadali l kharodiya shri bm shah college of pharmaceutical education and research, college campus, modasa, 383315, gujarat, india. jimish r patel shri bm shah college of pharmaceutical education and research, college campus, modasa, 383315, gujarat, india.

chemometric techniques in spectral analysis have gained importance in the quality control of  the drugs mixtures and pharmaceutical formulations containing two or more drugs with overlapping spectra. since theophylline and etophylline have common chromophore, they cannot be analyzed simultaneously using conventional uv methods. simultaneous spectrophotometric determination of etophylline and th...

Journal: :iranian journal of pharmaceutical research 0
mh sorouraddin e fooladi a naseri mr rashidi

attempts to obtain experimental values for the kinetic parameters of phenanthridine oxidation by guinea pig or rabbit liver aldehyde oxidase using common spectrophotometric methods have not been successful due to a lower limit of detection. in the present study, a new spectrofluorimetric assay in combination with a multivariate calibration method for enzymatic kinetic study of aldehyde oxidase ...

Journal: :Electronic Journal of Statistics 2012

Journal: :Journal of Computational and Applied Mathematics 1990

Journal: :Resonance 2021

Partial least square (PLS) analysis is the most favourite tool in chemometrics to develop calibration models. PLS technique allows us decipher even complex systems by analysing all variables instead of looking at them one a time. not only capture maximum variation associated with predictor (i.e. spectra) and predicted concentration) but also maximises correlation between them. The present artic...

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